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*Download Free to explore features and perform full Kerio conversion
Looking for the Best Migration Service “From” or “Into” Kerio?
Migrate Kerio Mailbox to Office 365 or other platforms using our recommended Cloud Migration Services. RecoveryTools expert team offers smooth migration with advanced filter features, so you don't have to worry about data corruption.
Simplified Kerio Mailbox Migration
Kerio Connect Mail Migration
Kerio Contacts and Calendar Export
File Naming & Advanced Filters
Kerio Migration Toolkit
Kerio Migration Options Supported
Desktop & Document Export
Save mailboxes as PDF, DOC, or CSV files to access them offline.
Universal File Formats
Flexibility to export Kerio to PST, MBOX, EML, MSG, and more.
Mail Client Integration
Migrate Kerio to Thunderbird, IBM Notes and more—no data loss.
Server-to-Server Transfer
Move Kerio to Exchange Server or IMAP with automated mapping.
Instant Cloud Migration
Move Kerio to Office 365, Gmail, Yahoo, G Suite, IceWrap and more.
Advanced Migration Options
Do Not Create Empty Folders, per-user logging, and failed-item backup.
Full Mailbox Item Support
Emails
Preserve messages and attachments.
Contacts
Sync all Contact Address Books.
Calendar
Transfer Kerio schedules & reminders.
Folders
Maintain Original Folder Hierarchy.
Journal
Kerio Journal Migration & Management
Notes
Securely move personal Notes or Memos
This Kerio Converter offers smart and advanced filtering features to help users to perform accurate and selective mailbox migration. You can easily export specific data from Kerio using following options:
Data & Mailbox Filtering
Performance & Cloud Connectors
Organization, Logs & Safety
RecoveryTools is rated as 5 Stars by CNET as being completely Clean and Malware Free. CNET has verified that RecoveryTools contains no adware or bundled spyware.
Top Features of Kerio Connect Converter
Simple & Intuitive Interface with Logs Tab
Kerio Converter is designed for everyone without manual configuration headaches. The software includes a dedicated "Logs" tab featuring "View Complete Log" (opens SavingLog.txt) and "View User Wise Log" (opens per-user report folders) to audit migration outcomes instantly.
Selective File & Clean Folder Structure
Pick specific Kerio Connect mailboxes, folders, or items to avoid unwanted migration. Coupled with the new "Do Not Create Empty Folder" option in Filter Options, the tool guarantees that empty or orphaned folders are omitted from the destination account.
Copy to Default Folders
Keep the Kerio mailbox perfectly organized during migration. This option automatically moves Kerio Inbox to Inbox, Sent Items to Sent Items, and more—without manual complications. Even if folder languages differ, the tool matches them correctly.
Customizable Saving Options
Easily export Kerio data to a variety of formats, according to your users' preferences. The tool also supports splitting large PSTs by size and changing folder languages. For better organization and control, the tool saves the migration file exactly where you want it.
Automatic Failed-Item Desktop Backup
Never worry about network timeouts or skipped records. When migrating Kerio to Office 365 or Exchange (EWS), any items that encounter transfer failures are automatically preserved and saved to the user's Desktop for comprehensive recovery and verification.
Speed & Accuracy
Kerio Migrator offers rapid and accurate migration. Utilize the built-in Fast Mode for O365/EWS to drastically cut down total transfer time by processing multiple messages simultaneously, alongside standard offline conversions.
On-Premise Kerio Mail Server & Admin Logging
Install and run directly on your Kerio Mail Server (Windows OS). When the "I am Admin" mode is enabled, the tool automatically generates per-user log files under the Reports folder across all saving options, providing comprehensive administrative oversight.
Experience Kerio Migration—Free
Experience all the functions and features of Kerio Migrator with the free trial version. Users can explore and know all features that meet all their needs before purchasing the full version. No risk, just complete Kerio migration experience.
Go-to Guide with Screenshots & Videos
Step 1: Download Kerio Migrator from the Official Website.
Step 2: Pick Kerio folders or files by ‘Select Folders’ or ‘Select Files’.
Step 3: Choose the saving format and destination path.
Step 4: Apply advanced filters for selective mailbox migration.
Step 5: Review settings and click Convert to begin migration.
System Requirements & Specs
| Name: | RecoveryTools Kerio Migrator |
| Version: | 26.7.3 |
| Size: | 36.8 MB |
| Delivery: | Free via Email |
| Free Version: |
What's New?
v26.7.3 Features
|
Trial Limitations: |
Demo Edition will allows you to only export 25 items from every Kerio Mailbox folder. |
| Hard Disk Space: | 188 MB of free hard disk space required |
| RAM: | 4 GB of RAM |
| Processor: | Intel® Core™ i5-1235U Processor (2.4 GHz Processor Recommended) |
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Platforms: |
Windows: 11, 10, 8.1, 8, 7, etc. | Windows Server: 2025, 2022, 2019, 2016, 2012, etc. |
|
Product Guide: |
Free vs Paid Version: Key Differences
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Buy Now Got Questions? Get Answers
Follow the steps to understand:
Optional: Use selective filters and the “Do Not Create Empty Folder” options to achieve an accurate & organized conversion.
Yes, RecoveryTools Kerio Server Migrator efficiently handles large mailboxes and bulk conversions with multi-threaded message uploads that prevent bottlenecking.
Yes, Export Kerio Server mailboxes to multiple formats such as PST, MBOX, and PDF. This tool supports migration to email clients and cloud platforms, including Outlook, Office 365, Gmail, and Thunderbird.
The software includes an automatic Failed-Item Backup feature. Any items that encounter issues during Office 365 or Exchange (EWS) transfer are exported directly to your Desktop. Furthermore, you can review the full status using the dedicated "Logs" tab buttons.
Yes, RecoveryTools Kerio Mailbox Migration Tool offers 24/7 technical support and regular updates.
This Windows-only program can’t be installed on Mac OS, but Mac-hosted Kerio mailboxes can be accessed via network drive on a Windows PC.
Yes, users can save Kerio contacts to CSV or vCard format. It also give you option to save Kerio Calendars in ICS format.
Customer Feedback
"This tool is excellent for complex migrations! Thanks to its easy-to-use graphical interface, the Kerio Connect migration was completed without any issues. It's perfect for businesses that want a straightforward yet filtered Kerio conversion."
Harrison Royston, Sweden
"I was totally surprised by this tool, which quickly transfers Kerio data. The support team was very helpful whenever I got stuck with any issue. It's definitely worth the investment."
Gabriel Haining, Tokyo
"Kerio server migration tool is a lifesaver because the entire process was straightforward, and I didn't face any complex technical issues from the RecoveryTools."
Shawn Standifer, United States
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